Telephone call-annunciator.



No. 727,801. I Y PATENTED MAY 12', 1903, G. K. JACKSON.

' TELEPHONE CALL ANNUNGIATOE.

v APPLIOATION FILED AUG. 5, 19oz. x0 MODEL. 2 SHEETS-SHEET 1.

Wiesszs No, 727,801. PATENTED MAY 12, 1903.

G. K. JACKSON. TELEPHONE CALL ANNUNOIATOR.

. APPLYIUATION FILED we. 5, 1902. no 110mm. I 2 sHnms-snnnw 2.

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NITED STATES Patented May 12, 1903;

PATENT TQFFFICE.

GEORGE K. JACKSON, OF REEOE, KANSAS, ASSIGNOR OF ONE-HALF TO ABNER HOWARD, OF EUREKA, KANSAS.

TELEPHOiN E CALL- A N N UNCIATO SPECIFICATION forming part of Letters Patent No. 727,801, dated May 12, 1903. Application filed August 5, 1902. Serial No. 118,525. (No model.)

To a whom it may concern:

Be it known that I, GEORGE K. JACKSON, a citizen of the United States, residing at Reece, in the county of Greenwood and State of Kansas, have invented a new and useful Telephone Gall-Annunciator, of which the following is a specification. V

The invention relates to improvements in telephone call-annunciators.

The object of the present invention is to provide a simple, inexpensive, and efficient device adapted to be readily applied to the call-bell of a telephone or other call and adapted to be automatically released by the vibration of the call-bell clapper, so that if the person called be absent the annunciator will inform him of such call upon his return.

A further object of the invention is to provide a device of this character adapted to be readily applied to a bell having either an interiorly or exteriorly arranged clapper.

The invention consists in the construction and novel combination and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is an elevation of a portion of a telephone provided with a device constructed in accordance with this invention. Fig. 2 is a horizontal sectional view of the same. Fig. 3 represents an elevation of a portion of a telephone, showing a modified form of annunciator. Fig. 4 represents a horizontal sectional view of the construction shown in Fig. 3.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

In the construction shown in Figs. 1 and 2, 1 designates a pivotally-mounted annunciator provided between its ends with a circular opening 2 and having an enlarged heavy arm 3 and a tapering arm 4, which is adapted,as hereinafter explained, to be engaged by the clapper 5 of a call-bell 6, whereby the annunciator is held in an approximately horizontal position to cause it when released by the vibratory motion of the clapper to automatically assume an upright position, as illustrated in dotted lines in Fig. 1. The tapering clapperengaged arm 1 is curved to conform to the as soon as it is free to move.

configuration of the bell, and its end 7, which is hook-shaped, is curved inward around the edge of the-bell to arrangeitinposition to be engaged by either an interiorly or exteriorly arranged clapper. As soon as the clapper in vibrating moves from the position shown in full lines in Fig. 2 to that illustrated in dotted lines the annunciator will be released. The hell 6 is secured bya nut 8 to the outer end of a stem or post 9, which has an outer reduced portion 10, threaded to receive the nut and forming a shoulder 11, against which the bell is arranged. A washer or collar 12 isinterposed between the bell and the nut 8 to prevent the latter from binding against the pivoted annunciator, and the latter, which is provided with an opening to receive the collar or washer 12, is adapted to turn freely thereon. The opening 2,which receives the collar or washer, is of less diameter than the nut which retains the annunciator in position. The arm 3 of the annunciator has sufficient weight to swing the same quickly to an upright position ciator is-adapted to be readilyapplied to a callbell by simply removing the nut and applying it and a washer or collar to the outer end ofthe stem or post. The engaged end of the annunciator is arranged at both the interior and exterior of the; bell to enable it to be held by either an interiorly or exteriorly arranged clapper, and as the weighted arm is straight it 'is'adapted to be readily swung around from the position shown in dotted lines in Fig. 1 to that illustrated in full lines to arrange it for automatic operation.

The form of this invention shown in Figs. 3 and 4 has one arm 4 only, which is similar to the clapper-engaging arm 4: (shown in Figs. 1 and 2) and is provided with a hook-shaped end 7 curved inward around the edge of the bell. In this construction the washer or collar 12 is made thicker than the collar 12'to provide sufficient space betweenthe bell and the stud-engaging end of the I arm 4: to per mit the insertion of a coiled operating-spring 15, which is secured at one end to the bell, as at 16, and is secured at the other end to the annunciator, as at 17. When the movement of the clapper releases the free end of the annunciator from engagement therewith,

the coiled spring causes it to swing around into an indicating position.

It will be seen that the device is exceedingly simple and inexpensive in construction, that it is adapted to be quickly applied to a callbell, and that it is capable of being released by the first vibration of the clapper of the bell, so that if the person called is absentthe annunciator will inform him of such call upon his return. Also it will be clear that as the annunciator is offset from the bell it is adapted to be readily swung around to its engaged position.

I desire it to be understood that various changes in the form, proportion, size, and minor details of construction within the scope of the appended claims may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

What I claim is- 1. An annunciator for telephone call-bells and the like pivoted between its ends concentric with the bell and having one arm offset from the bell and forming a Weight for holding the indicator in an upright indicating position, the other arm of the annunciator conforming to the configuration of the bell and arranged to be engaged by the clapper thereof, whereby the annunciator is yieldably'held out of its indicating position and is adapted to swing automatically to such position when released by the clapper, substantially as described.

2. An annunciator for telephone call-bells and the like consisting of a member pivotally mounted upon the bell for movement concentric therewith, adapted to be engaged and held in a non-indicating position by the bell-clapper, and movable, when released by the movement of the clapper, to an indicating position.

In testimony that I claim the foregoing as my own I have hereto afliXed my signature in the presence of two witnesses.

GEORGE K. JACKSON.

Witnesses:

E. A. STRITE, J. R. IvEs. 

